Sash-lock.



No. 821,842. PATBNTED yMAY 29, 1906.

J. B. VINCENT'.

sAsH 1.00K..

APPLICATION FILED JAN.,26,1906.

E :irl-1122's 425 sfz 52 c2 C d WITNESSES INVENTOH JAMES B. viNcENT, 0EELATBUSH, NEW YORK.

SASH-LOCK.

Specification of Letters Patent.

Patented May 29, 1906.

Application led January Z6, 1906. Serial No. 297,950.

To all whowb it maf/ zj concern:

Be it known that I, JAMES B. VINCENT, a citizen of the United States,residing at Flatbush, Long Island, in the county of Kings and State ofNew York, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification, such as will enablethose skilled in the art to which it appertains to make and use thesame.

This invention relates to locks for windows; and the object thereof isto provide an improved device of this class which is simple inconstruction and operation and which is invisible eXcept from the innerside of the window; and with this and other objects in view theinvention consists in a device of the class specified constructed ashereinafter described and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which- Figure 1 is an inside view of thebottom portion of the upper sash and the top portion of the lower sashof a window and showing said parts provided with my improved sashlock;Fig. 2, a section on the line 2 2 of Fig. 1, and Fig. 3 a plan view ofthe construction as shown'in Fig. 2.

In the drawings forming part of this speciiication I have shown at a thebottom part of the upper sash of a: window and at l) the top part of thelower sash, and the bottom part 'of the upper sash is provided with abottom rail a2 and the top part of the lower sash with a top rail b2,and in thepractice of my invention I form in the top part b2 of thebottom sash a longitudinal recess or chamber b3, which opens backwardlythrough said part of the upper sash at one end of said chamber, as shownat b4, and the back surface of the part b2 of the bottom sash is alsoprovided in the form of construction shown with a countersunk plate b5,having an opening similar to that of b4.

The bottom rail a2 of the top sash c is provided in the front surfacethereof with a chamber or recess a3, 'adapted to register with theopening b4, and secured to the front surface of the part a2 is aguard-plate a4, having an opening which corresponds with the chamber orrecess a3.

Pivoted in the chamber or recess b3 in the top rail b2 of the bottomsash and ranging longitudinally of said chamber is a dog c, said dogbeing pivoted nearer one end of said chamber than the other, as shown atc2, and the free end of said dog is provided with a backwardly-directednose c3, 'which is adapted to enter the chamber c3 when the sashes arein their closed position, and formed in the head of the dog c is arecess c4, and pivoted to Vthe front surface or face of the top rail b2of the bottom sash b is a catch d, adapted to enter the recess c4 and tohold the dog c out of engagement with the top sash when the sashes arenot locked together. A guardplate e is also preferably secured to thetop rail b2 of the bottom sash and provided with an opening whichcorresponds with the chamber b3 and to which the catch d is pivoted inthe form of construction shown, and said plate is provided withstops e2and c3, which are adapted to limit the movement of the catch cl, and inpractice the dog c is pivoted to the inner side of the said plate c.

The operation of this device will be readily understood from theforegoing description, when taken in connection with the accompanyingdrawings and the following statement thereof. When the dog c is in theposition shown in full lines in Fig. 2 the sashes are locked together,and when said dog is in the position indicated in dotted lines in Fig. 2and shown in full lines in Fig. 3 the sashes are free to be moved oradjusted to any desired position. The dog c may be held in the unlockedposition by the catch d, and when this is done there is no danger ofbreaking the dog or the nose thereof or of injuring the sashes by thevertical movement of said sashes when the dog is in the operativeposition. The dog c is swung into the operative the head end thereof andinto the inoperative position, as shown in Fig. 3, by pressing on theheel thereof,

I-Iaving fully described my invention, what I claim as new, and desireto secure by Let-v ters Patent, is

l. A sash-lock comprising an oblong chamber formed in the front surfaceof the top rail of a bottom sash, a dog pivoted in said chamber andprovided at one end with a nose adapted to pass backwardly through saidrail and to entera recess formed in the front wall of the bottom rail ofthe top sash, and

position, as shown in Fig. 3, by pressing on ICO' `means for holding thedog in both the operasash and a recess formed in the head of the tiveand ino erative position, substantially dog and adapted to receive saidcatch when 15 as shown an described. the dog is in its inoperativeposition, substan- 2, A sash-lock comprising an'oblong chamtially asshown land described, i 5 ber formed in the front surface of the toprail In testimony that I claim the foregoing as of a bottom sash, a dogpivoted in said cham-v my invention I have signed my name, in ber andprovided at one end with a nose presence of the subscribing Witnesses,this 2o adapted to pass backwardly throughv said 25th day of January,1906.

rail and to entera recess-formed in the front 1o Wall of the bottom railof the top sash, and JAMES B' VINCENT' means for holding the dog in boththe opera- Witnesses: tive and inoperative position, comprising a F. A.STEWART,

catch pivoted to the top rail of the bottom C. E. MULREANY.

